Here are a few other feedbacks:

1. Maybe you can add an option to extend the available commands with user-defined commands ? The user will provide the path to its own Python library. That way you won't be bother each time someone comes with a new strange request...
2. I was thinking that the SMS correctly interpreted by smscon should be silently deleted. The potential 'thief' could see a lot of information just by looking at the SMS received by Maemo notification (little yellow boxes). If not too stupid he could even use the 'Unlock' feature...
3. It seems that when launching a 'Remoteon' command. An automatic connection to GPRS is made. But the 'Remoteoff' command doesn't close the connection. Smscon should memorize if it has opened a connection by itself and close it when it received the 'Remoteoff' command (otherwise potential battery drainage...).

Thanks again for this useful application !